Midea error code E3
What it means
Refrigerant leak detection or low system capacity protection.
Possible causes
Refrigerant leak causing undercharge Incorrect charge volume after installation Restriction leading to low evaporator temperature and protective trip
Suggested fix
A technician should confirm low capacity from pressure and temperature readings and carry out leak detection; repair leaks and recharge the system accurately by weight, in compliance with refrigerant-handling regulations.
Safety first. Isolate the power supply before inspecting any unit. Refrigerant-circuit
and electrical repairs must be carried out by a qualified, registered technician.
Other Midea codes
- E1 — Communication error between indoor and outdoor units.
- E2 — Temperature sensor error (typically indoor air or coil sensor).
- E4 — Compressor or discharge temperature error.
- E5 — Fan motor fault or abnormal fan speed.
- EC — Refrigerant leakage or compressor protection alarm.
- F0 — Low refrigerant or low load protection.
- F1 — Indoor ambient (room) temperature sensor fault.
- F2 — Indoor evaporator temperature sensor fault.
- F3 — Outdoor ambient temperature sensor fault.